Color
#4f1971
#4f1971rgb(79, 25, 113)hsl(277, 64%, 27%)oklch(0.347 0.144 308.5)Colors that go with #4f1971
Crimson, Midnight Blue and Tomato lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Crimson #dc143c
shippedCrimson is paired with #4f1971 in 5 real palettes, including Lenovo's brand system and Casper Sleep's brand system, as the supporting colour.
Midnight Blue #191970
shipped4 real palettes, including Visa's brand system and Gillette's brand system put Midnight Blue beside #4f1971, as the lead colour.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and dbt Labs's brand system put Tomato beside #4f1971, as the supporting colour.
Olive Green #808000
complementaryOlive Green sits directly opposite #4f1971 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #4f1971: softer than #000 and cool enough to feel like part of the same palette.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #4f1971: 3 real palettes, including Purina Pro Plan's brand system and Blue Mono, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #4f1971: 3 real palettes, including Hinge's brand system and Slack's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #4f1971 in 3 real palettes, including Discord's brand system and Confluent's brand system, as the lead colour.
Real palettes that use #4f1971
Tints & shades
Harmonies
Contrast
| #4f1971 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 12.28:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.71:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f1971 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#4f1971 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #4f1971 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/4f1971-b99cc4-bdcb62-2d1f2c-eae9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md